diff options
Diffstat (limited to 'apt-pkg/acquire-item.cc')
| -rw-r--r-- | apt-pkg/acquire-item.cc | 323 |
1 files changed, 190 insertions, 133 deletions
diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc index b8886a750..aab8b7ed1 100644 --- a/apt-pkg/acquire-item.cc +++ b/apt-pkg/acquire-item.cc @@ -134,35 +134,37 @@ void pkgAcquire::Item::Rename(string From,string To) } /*}}}*/ -// AcqIndexDiffs::AcqIndexDiffs - Constructor + +// AcqDiffIndex::AcqDiffIndex - Constructor // --------------------------------------------------------------------- -/* The package diff is added to the queue. one object is constructed - * for each diff and the index +/* Get the DiffIndex file first and see if there are patches availabe + * If so, create a pkgAcqIndexDiffs fetcher that will get and apply the + * patches. If anything goes wrong in that process, it will fall back to + * the original packages file */ -pkgAcqIndexDiffs::pkgAcqIndexDiffs(pkgAcquire *Owner, - string URI,string URIDesc,string ShortDesc, - string ExpectedMD5, vector<DiffInfo> diffs) - : Item(Owner), RealURI(URI), ExpectedMD5(ExpectedMD5), - available_patches(diffs) +pkgAcqDiffIndex::pkgAcqDiffIndex(pkgAcquire *Owner, + string URI,string URIDesc,string ShortDesc, + string ExpectedMD5) + : Item(Owner), RealURI(URI), ExpectedMD5(ExpectedMD5), Description(URIDesc) { - DestFile = _config->FindDir("Dir::State::lists") + "partial/"; - DestFile += URItoFileName(URI); - Debug = _config->FindB("Debug::pkgAcquire::Diffs",false); - Desc.Description = URIDesc; + Desc.Description = URIDesc + "/DiffIndex"; Desc.Owner = this; Desc.ShortDesc = ShortDesc; + Desc.URI = URI + ".diff/Index"; + + DestFile = _config->FindDir("Dir::State::lists") + "partial/"; + DestFile += URItoFileName(URI) + string(".DiffIndex"); + + if(Debug) + std::clog << "pkgAcqDiffIndex: " << Desc.URI << std::endl; + // look for the current package file CurrentPackagesFile = _config->FindDir("Dir::State::lists"); CurrentPackagesFile += URItoFileName(RealURI); - if(Debug) { - std::clog << "pkgAcqIndexDiffs::pkgAcqIndexDiffs(): " - << CurrentPackagesFile << std::endl; - } - if(!FileExists(CurrentPackagesFile) || !_config->FindB("Acquire::Diffs",true)) { // we don't have a pkg file or we don't want to queue @@ -172,37 +174,20 @@ pkgAcqIndexDiffs::pkgAcqIndexDiffs(pkgAcquire *Owner, return; } - if(available_patches.size() == 0) { - State = StateFetchIndex; - QueueDiffIndex(URI); - } else { - State = StateFetchDiff; - QueueNextDiff(); + if(Debug) { + std::clog << "pkgAcqIndexDiffs::pkgAcqIndexDiffs(): " + << CurrentPackagesFile << std::endl; } -} - -void pkgAcqIndexDiffs::QueueDiffIndex(string URI) -{ - Desc.URI = URI + ".diff/Index"; - Desc.Description = Description + "IndexDiff"; - DestFile = _config->FindDir("Dir::State::lists") + "partial/"; - DestFile += URItoFileName(URI) + string(".IndexDiff"); - - if(Debug) - std::clog << "QueueDiffIndex: " << Desc.URI << std::endl; QueueURI(Desc); + } // AcqIndex::Custom600Headers - Insert custom request headers /*{{{*/ // --------------------------------------------------------------------- /* The only header we use is the last-modified header. */ -string pkgAcqIndexDiffs::Custom600Headers() +string pkgAcqDiffIndex::Custom600Headers() { - // we only care for the IndexDiff file - if(State != StateFetchIndex) - return string(""); - string Final = _config->FindDir("Dir::State::lists"); Final += URItoFileName(RealURI) + string(".IndexDiff"); @@ -216,11 +201,170 @@ string pkgAcqIndexDiffs::Custom600Headers() return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); } + +bool pkgAcqDiffIndex::ParseDiffIndex(string IndexDiffFile) +{ + if(Debug) + std::clog << "pkgAcqIndexDiffs::ParseIndexDiff() " << IndexDiffFile + << std::endl; + + pkgTagSection Tags; + string ServerSha1; + vector<DiffInfo> available_patches; + + FileFd Fd(IndexDiffFile,FileFd::ReadOnly); + pkgTagFile TF(&Fd); + if (_error->PendingError() == true) + return false; + + if(TF.Step(Tags) == true) + { + string local_sha1; + string tmp = Tags.FindS("SHA1-Current"); + std::stringstream ss(tmp); + ss >> ServerSha1; + + FileFd fd(CurrentPackagesFile, FileFd::ReadOnly); + SHA1Summation SHA1; + SHA1.AddFD(fd.Fd(), fd.Size()); + local_sha1 = string(SHA1.Result()); + + if(local_sha1 == ServerSha1) { + if(Debug) + std::clog << "Package file is up-to-date" << std::endl; + new pkgAcqIndexDiffs(Owner, RealURI, Description, Desc.ShortDesc, + ExpectedMD5, available_patches); + Complete = false; + Status = StatDone; + Dequeue(); + return true; + } + if(Debug) + std::clog << "SHA1-Current: " << ServerSha1 << std::endl; + + // check the historie and see what patches we need + string history = Tags.FindS("SHA1-History"); + std::stringstream hist(history); + DiffInfo d; + string size; + bool found = false; + while(hist >> d.sha1 >> size >> d.file) { + d.size = atoi(size.c_str()); + // read until the first match is found + if(d.sha1 == local_sha1) + found=true; + // from that point on, we probably need all diffs + if(found) { + if(Debug) + std::clog << "Need to get diff: " << d.file << std::endl; + available_patches.push_back(d); + } + } + + // no information how to get the patches, bail out + if(!found) { + if(Debug) + std::clog << "Can't find a patch in the index file" << std::endl; + // Failed will queue a big package file + Failed("", NULL); + } else { + // queue the diffs + new pkgAcqIndexDiffs(Owner, RealURI, Description, Desc.ShortDesc, + ExpectedMD5, available_patches); + Complete = false; + Status = StatDone; + Dequeue(); + return true; + } + } + + return false; +} + +void pkgAcqDiffIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf) +{ + if(Debug) + std::clog << "pkgAcqDiffIndex failed: " << Desc.URI << std::endl + << "Falling back to normal index file aquire" << std::endl; + + new pkgAcqIndex(Owner, RealURI, Description,Desc.ShortDesc, + ExpectedMD5); + + Complete = false; + Status = StatDone; + Dequeue(); +} + +void pkgAcqDiffIndex::Done(string Message,unsigned long Size,string Md5Hash, + pkgAcquire::MethodConfig *Cnf) +{ + if(Debug) + std::clog << "pkgAcqDiffIndex::Done(): " << Desc.URI << std::endl; + + Item::Done(Message,Size,Md5Hash,Cnf); + + string FinalFile; + FinalFile = _config->FindDir("Dir::State::lists")+URItoFileName(RealURI); + + // sucess in downloading the index + // rename the index + FinalFile += string(".IndexDiff"); + if(Debug) + std::clog << "Renaming: " << DestFile << " -> " << FinalFile + << std::endl; + Rename(DestFile,FinalFile); + chmod(FinalFile.c_str(),0644); + DestFile = FinalFile; + + if(!ParseDiffIndex(DestFile)) + return Failed("", NULL); + + Complete = true; + Status = StatDone; + Dequeue(); + return; +} + + + +// AcqIndexDiffs::AcqIndexDiffs - Constructor +// --------------------------------------------------------------------- +/* The package diff is added to the queue. one object is constructed + * for each diff and the index + */ +pkgAcqIndexDiffs::pkgAcqIndexDiffs(pkgAcquire *Owner, + string URI,string URIDesc,string ShortDesc, + string ExpectedMD5, vector<DiffInfo> diffs) + : Item(Owner), RealURI(URI), ExpectedMD5(ExpectedMD5), + available_patches(diffs) +{ + + DestFile = _config->FindDir("Dir::State::lists") + "partial/"; + DestFile += URItoFileName(URI); + + Debug = _config->FindB("Debug::pkgAcquire::Diffs",false); + + Desc.Description = URIDesc; + Desc.Owner = this; + Desc.ShortDesc = ShortDesc; + + if(available_patches.size() == 0) { + // we are done (yeah!) + Finish(true); + } else { + // get the next diff + State = StateFetchDiff; + QueueNextDiff(); + } +} + + void pkgAcqIndexDiffs::Failed(string Message,pkgAcquire::MethodConfig *Cnf) { - std::clog << "pkgAcqIndexDiffs failed: " << Desc.URI << std::endl - << "Falling back to normal index file aquire" << std::endl; - new pkgAcqIndex(Owner, RealURI, Desc.Description,Desc.ShortDesc, + if(Debug) + std::clog << "pkgAcqIndexDiffs failed: " << Desc.URI << std::endl + << "Falling back to normal index file aquire" << std::endl; + new pkgAcqIndex(Owner, RealURI, Description,Desc.ShortDesc, ExpectedMD5); Finish(); } @@ -240,7 +384,6 @@ void pkgAcqIndexDiffs::Finish(bool allDone) if(Debug) std::clog << "\n\nallDone: " << DestFile << "\n" << std::endl; return; - } if(Debug) @@ -284,11 +427,11 @@ bool pkgAcqIndexDiffs::QueueNextDiff() } // queue the right diff - Desc.URI = string(RealURI) + string(".diff/") + available_patches[0].file + string(".gz"); + Desc.URI = string(RealURI) + ".diff/" + available_patches[0].file + ".gz"; Desc.Description = available_patches[0].file + string(".pdiff"); DestFile = _config->FindDir("Dir::State::lists") + "partial/"; - DestFile += URItoFileName(RealURI + string(".diff/") + available_patches[0].file); + DestFile += URItoFileName(RealURI + ".diff/" + available_patches[0].file); if(Debug) std::clog << "pkgAcqIndexDiffs::QueueNextDiff(): " << Desc.URI << std::endl; @@ -298,74 +441,6 @@ bool pkgAcqIndexDiffs::QueueNextDiff() return true; } -bool pkgAcqIndexDiffs::ParseIndexDiff(string IndexDiffFile) -{ - if(Debug) - std::clog << "pkgAcqIndexDiffs::ParseIndexDiff() " << IndexDiffFile - << std::endl; - - FileFd Fd(IndexDiffFile,FileFd::ReadOnly); - pkgTagFile TF(&Fd); - if (_error->PendingError() == true) - return false; - pkgTagSection Tags; - if(TF.Step(Tags) == true) - { - string local_sha1; - string tmp = Tags.FindS("SHA1-Current"); - std::stringstream ss(tmp); - ss >> ServerSha1; - - FileFd fd(CurrentPackagesFile, FileFd::ReadOnly); - SHA1Summation SHA1; - SHA1.AddFD(fd.Fd(), fd.Size()); - local_sha1 = string(SHA1.Result()); - - if(local_sha1 == ServerSha1) { - if(Debug) - std::clog << "Package file is up-to-date" << std::endl; - Finish(true); - return true; - } - if(Debug) - std::clog << "SHA1-Current: " << ServerSha1 << std::endl; - - // check the historie and see what patches we need - string history = Tags.FindS("SHA1-History"); - std::stringstream hist(history); - DiffInfo d; - string size; - bool found = false; - while(hist >> d.sha1 >> size >> d.file) { - d.size = atoi(size.c_str()); - // read until the first match is found - if(d.sha1 == local_sha1) - found=true; - // from that point on, we probably need all diffs - if(found) { - if(Debug) - std::clog << "Need to get diff: " << d.file << std::endl; - available_patches.push_back(d); - } - } - - // no information how to get the patches, bail out - if(!found) { - if(Debug) - std::clog << "Can't find a patch in the index file" << std::endl; - // Failed will queue a big package file - Failed("", NULL); - } else { - // queue the diffs - new pkgAcqIndexDiffs(Owner, RealURI, Description, Desc.ShortDesc, - ExpectedMD5, available_patches); - Finish(); - return true; - } - } - - return false; -} void pkgAcqIndexDiffs::Done(string Message,unsigned long Size,string Md5Hash, @@ -379,24 +454,6 @@ void pkgAcqIndexDiffs::Done(string Message,unsigned long Size,string Md5Hash, string FinalFile; FinalFile = _config->FindDir("Dir::State::lists")+URItoFileName(RealURI); - // sucess in downloading the index - if(State == StateFetchIndex) - { - // rename the index - FinalFile += string(".IndexDiff"); - if(Debug) - std::clog << "Renaming: " << DestFile << " -> " << FinalFile - << std::endl; - Rename(DestFile,FinalFile); - chmod(FinalFile.c_str(),0644); - DestFile = FinalFile; - - if(!ParseIndexDiff(DestFile)) - return Failed("", NULL); - else - return Finish(); - } - // sucess in downloading a diff, enter ApplyDiff state if(State == StateFetchDiff) { @@ -924,8 +981,8 @@ void pkgAcqMetaIndex::QueueIndexes(bool verify) } // Queue Packages file - new pkgAcqIndexDiffs(Owner, (*Target)->URI, (*Target)->Description, - (*Target)->ShortDesc, ExpectedIndexMD5); + new pkgAcqDiffIndex(Owner, (*Target)->URI, (*Target)->Description, + (*Target)->ShortDesc, ExpectedIndexMD5); } } |